Home / 78,860,229.15-118,316,623.60-49,680,380.53

Finding the Fourth Proportional to 78,860,229.15, 118,316,623.60 and 49,680,380.53

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Solution

The fourth proportional to 78,860,229.15, 118,316,623.60 and 49,680,380.53 is: 74,537,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,860,229.15 : 118,316,623.60 = 49,680,380.53 : x
  2. Step 2: Convert to fraction form
    78,860,229.15/118,316,623.60 = 49,680,380.53/x
  3. Step 3: Cross multiply
    78,860,229.15x = 118,316,623.60 × 49,680,380.53
  4. Step 4: Simplify right side
    78,860,229.15x = 5,878,014,882,881,195
  5. Step 5: Solve for x
    x = 5,878,014,882,881,195/78,860,229.15
  6. Step 6: Final answer
    x = 74,537,126.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.